confirmed with several different hosts, different save files... IC rev. 2, installed over AoD 1.05. (checksum YLIL)
When the host tries to send the save file, his game crashes.
We didn't have an issue previously when we were using IC rev. 2 installed over Armageddon, and we never had this playing straight AoD, so it's some kind of bad interaction between IC and AoD that's causing it.